[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$ffs6wlRySy6bbFAndWYbx3vryw46hRmzchqCZrB2Oa-o":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2024-04-01 21:30:31",136585885,[8,9,10,11],"将所有密钥公开","将私有密钥公开,公开密钥保密","将公开密钥公开,私有密钥保密","两个密钥相同",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},10,"ddcb1cd8eb5b04d727837950b1319f0d","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F566c8e36cfbf7ec8ad530c758f6fd601.jpg","网络安全技术","d0e19a133dea47888706745d0dc98518","8-4 加密技术概述课后练习",""公开密钥密码体制"的含义是( )",[21,32,41,50,53,62,71,78,86,91],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],136585882,[25,26,27,28],"研究数据加密","研究数据解密","研究数据保密","研究信息安全","密码学的目的是( )","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],136585883,[36,37,38,39],"对称加密技术","分组密码技术","公钥加密技术","单向函数密码技术","假设使用一种加密算法,它的加密方法很简单:将每一个字母加5,即a加密成f.这种算法的密钥就是5,那么它属于( )",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],136585884,[45,46,47,48],"KB公开(KA秘密(M'))","KA公开(KA公开(M'))","KA公开(KB秘密(M'))","KB秘密(KA秘密(M'))","A方有一对密钥(KA公开,KA秘密),B方有一对密钥(KB公开,KB秘密),A方向B方发送数字签名M,对信息M加密为:M'= KB公开(KA秘密(M)).B方收到密文的解密方案是( )",{"answer":51,"createTime":5,"id":6,"options":52,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":30,"type":31},[],136585886,[57,58,59,60],"加密机制和数字签名机制","加密机制和访问控制机制","数字签名机制和路由控制机制","访问控制机制和路由控制机制","用于实现身份鉴别的安全机制是( )",{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":30,"type":31},[],136585887,[66,67,68,69],"通信业务填充机制","访问控制机制","数字签名机制","审计机制","( )不属于ISO\u002FOSI安全体系结构的安全机制",{"answer":72,"createTime":5,"id":73,"options":74,"question":77,"source":30,"type":31},[],136585888,[75,68,67,76],"加密机制","数据完整性机制","ISO安全体系结构中的对象认证服务,使用( )完成",{"answer":79,"createTime":5,"id":80,"options":81,"question":85,"source":30,"type":31},[],136585889,[82,66,83,84],"认证交换机制","路由控制机制","公证机制","CA属于ISO安全体系结构中定义的( )",{"answer":87,"createTime":5,"id":88,"options":89,"question":90,"source":30,"type":31},[],136585890,[76,68,67,75],"数据保密性安全服务的基础是( )",{"answer":92,"createTime":5,"id":93,"options":94,"question":99,"source":30,"type":31},[],136585891,[95,96,97,98],"假冒源地址或用户的地址欺骗攻击","抵赖做过信息的递交行为","数据中途被攻击者窃听获取","数据在途中被攻击者篡改或破坏","可以被数据完整性机制防止的攻击方式是( )"]